CN104471148B - The preparation method of cardboard - Google Patents
The preparation method of cardboard Download PDFInfo
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- CN104471148B CN104471148B CN201380031107.6A CN201380031107A CN104471148B CN 104471148 B CN104471148 B CN 104471148B CN 201380031107 A CN201380031107 A CN 201380031107A CN 104471148 B CN104471148 B CN 104471148B
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- component
- water
- described component
- cardboard
- added
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/11—Halides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/64—Alkaline compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
Abstract
The present invention provides the preparation method of a kind of cardboard, and the method includes: from containing size degradation fiber pulping raw material with waste paper as primary raw material and making beating with the pulping stage obtaining pulping process water；It is added to the additive containing paper power reinforcing agent in the pulping process water of gained obtain the storing preparation process of the paper pulp raw material made；With the papermaking procedure that the obtained paper pulp raw material made is prepared as cardboard, wherein, by the aqueous solution of the aqueous solution of (a) hypochlorite and (b) water-soluble inorganic ammonium salt or ammonia are added in described pulping process water, to reduce the amount of the paper power reinforcing agent being added in described storing preparation process, thus prepare cardboard.
Description
Technical field
The present invention relates to the preparation method of a kind of cardboard using waste paper to be primary raw material.Specifically, this
Bright relate to that a kind of to use waste paper be primary raw material by reducing the addition of paper power reinforcing agent and more warp
Prepare to Ji the paperboard making process of the cardboards such as casingd board.
Background technology
In the cardboards such as such as casingd board, most raw material is made up of waste paper.
Being during primary raw material prepares cardboard using waste paper, first passing around use pulper will be with useless
Paper is that the pulping raw material (pulp raw material) of primary raw material carries out size degradation and making beating (disintegrating
And beating fibers) to obtain the pulping stage of pulping process water (pulping process water)；
It is then passed through adding the additive containing paper power reinforcing agent in the pulping process water of gained to obtain system
Storing preparation process (the stock preparation of the paper pulp raw material (prepared pulp raw material) become
Step) and the obtained paper pulp raw material made is prepared as the papermaking procedure of cardboard, thus prepares paper
Plate.In described storing preparation process, in order to keep the intensity of the cardboard of gained, and by paper power reinforcing agent
Add storing to prepare in water.
It addition, waste paper contains the starch coming from binding agent etc. in a large number.
Thus, Japanese Unexamined Patent Publication 2010-100945 publication (patent documentation 1) provides the system of a kind of paper
Preparation Method, wherein connects amylase activity, starch concentration, pH value and the oxidation-reduction potential of operation water
Or measure off and on continuously, and add antibacterial to prevent the pulping process of waste paper according to measurement result
Starch degradation in water (assumes that starch degradation is caused by rotting of causing of the propagation of microorganism).
But, Japanese Unexamined Patent Publication 2011-226043 publication (patent documentation 2) it was concluded that directly will
Antibacterial adds the sterilization that can not give full play to bactericidal action in waste paper pulp-making operation water and only carry out part,
This is owing to pulping process water has the high pulp density no less than 3% so that the bad dispersibility of antibacterial.
It is to say, patent documentation 2 it was concluded that the method for patent documentation 1 can not completely inhibit by micro-life
The deterioration of the paper quality that thing causes.Therefore, patent documentation 2 proposes a kind of suppression mucus (suppressing
Slime) method, the method by antibacterial is added in dilution water, using use waste paper etc. as
The papermaking operation of raw material dilutes raw material.
Prior art
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2010-100945 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2011-226043 publication
Summary of the invention
The technical problem to be solved
It is during primary raw material prepares cardboard using waste paper, although preparing from pulping stage to storing
Time needed for step depends on used device but usually 1 to several hours.It is to say,
Even if retaining the starch from waste paper or paper power reinforcing agent on fiber, but owing to pulping process water flows into storage
The time of material preparation process is shorter, therefore by the starch retained on fiber or paper power during flowing into
Reinforcing agent rot and occur degraded probability be extremely low.
But, using waste paper is that primary raw material is prepared cardboard needs and added substantial amounts of in storing preparation process
Paper power reinforcing agent.This is presumably because that the starch on the fiber retaining in waste paper and paper power reinforcing agent are by making
Slurry step has carried out physically discharging to storing preparation process.
Present invention aim at providing that a kind of to use waste paper be primary raw material by reducing paper power reinforcing agent
Addition and prepare the paperboard making process of the cardboards such as casingd board the most economically.
The method of solution problem
Inventor, is protected in pulping stage at starch and the paper power reinforcing agent if from waste paper
Hold and be not released on fiber, then, under the anticipation of the addition that can reduce paper power reinforcing agent, weighed
Retrial is tested and in-depth study.And confirmed by practice, it is that primary raw material prepares cardboard using waste paper
During, by by the aqueous solution (such as aqueous sodium hypochlorite solution) of hypochlorite and water-soluble inorganic ammonium salt
Aqueous solution (such as ammonium sulfate solution) or ammonia add in pulping process water, storage can be significantly reduced
In material preparation process, the addition of paper power reinforcing agent, this completes the present invention.
To papermaking operation water, sterilization is played it is known that added by the aqueous solution of sodium hypochlorite and ammonium sulfate
Effect (such as, No. 4914146 publications of Japanese Patent No.).
But, due to pulping stage to storing preparation process and papermaking procedure at short notice by rotting
Make from the starch of waste paper or the probability of paper power reinforcing agent degraded low, and as patent documentation 2 is pointed out,
Directly antibacterial is added to the sterilization of performance in the pulping process water of the high pulp density with more than 3%
Effect is also the most inadequate, it is therefore contemplated that in storing preparation process, by be applied in combination sodium hypochlorite and
Different other the mechanism of the bactericidal action of the aqueous solution of ammonium sulfate plays the addition of paper power reinforcing agent
Reducing effect.
Thus, the invention provides the preparation method of a kind of cardboard, the method includes:
From containing size degradation fiber pulping raw material with waste paper as primary raw material and making beating to obtain slurrying work
The pulping stage of sequence water；Additive containing paper power reinforcing agent is added in the pulping process water of gained to obtain
The storing preparation process of the paper pulp raw material that must make；And the obtained paper pulp raw material made is prepared as
The papermaking procedure of cardboard.
Wherein, by the aqueous solution by the aqueous solution of (a) hypochlorite He (b) water-soluble inorganic ammonium salt
Or ammonia adds in described pulping process water, the paper being added in described storing preparation process with reduction
The amount of power reinforcing agent, thus prepare cardboard.
The effect of the present invention
The preparation method of the cardboard of the present invention can provide a kind of use waste paper to be main raw material(s) and fall
The addition of low paper power reinforcing agent to prepare the cardboard preparation side such as cardboards such as casingd boards the most economically
Method.
In other words, (holding) can be effectively utilized from useless due to the preparation method of the cardboard of the present invention
The starch of paper and paper power reinforcing agent, reduce the consumption of paper power reinforcing agent, therefore can prepare the most economically
Cardboard, the most highly useful.
It is included in the paper power reinforcing agent used in cardboard preparation process as reducible paper power reinforcing agent,
For example, it is known that paper power reinforcing agent such as cationic starch, amphoteric starch, polyvinyl alcohol, polyacrylamide
Class paper power reinforcing agent, polyamide, epoxy chloropropionate alkanes paper power reinforcing agent.
The preparation method of the cardboard of the present invention can play the effect above the most further:
Described component (a) is the aqueous solution of sodium hypochlorite, postassium hypochlorite or calcium hypochlorite, Yi Jisuo
State component (b) for such as ammonium chloride, ammonium bromide, ammonium phosphate, ammonium dihydrogen phosphate, diammonium phosphate, sulfur
The aqueous solution of the water-soluble inorganic ammonium salt of acid ammonium or ammonium nitrate or ammonia；
In described pulping process water, pulp density is 3-5%；
In described component (a), effective chlorine density is 1000-9000mg/L；Described component (b) dense
Degree is 1000-9000mg/L, and on the basis of described pulping process water, is converted into the institute of effective chlorine density
The addition stating component (a) and described component (b) is 1-40mg/L, wherein, and described component (a)
Middle effective chlorine is 1:1～1:2 with the mol ratio of nitrogen in described component (b)；
Carry out mixing described component (a) and described component (b) with prepared mixed solution, then will
The mixed solution of gained adds in described pulping process water；
The dilution waterline flowed in pulping process water is provided, and arrange component (a) is added to described
The component (a) in dilution water in dilution waterline is added point and component (b) is added to described dilution
Component (b) in dilution water in waterline adds point；Respectively, described component (a) is in described component
A () interpolation point is added and described component (b) is added point described component (b) and is added.
Detailed description of the invention
The preparation method of the cardboard of the present invention includes:
From containing size degradation fiber pulping raw material with waste paper as primary raw material and making beating to obtain slurrying work
The pulping stage of sequence water；Additive containing paper power reinforcing agent is added in the pulping process water of gained to obtain
The storing preparation process of the paper pulp raw material that must make；And the obtained paper pulp raw material made is prepared as
The papermaking procedure of cardboard,
Wherein, by the aqueous solution by the aqueous solution of (a) hypochlorite He (b) water-soluble inorganic ammonium salt
Or ammonia adds in described pulping process water, the paper being added in described storing preparation process with reduction
The amount of power reinforcing agent, thus prepare cardboard.
In the preparation method of the cardboard of the present invention, from containing the pulping raw material with waste paper as primary raw material
Size degradation fiber and making beating are to obtain the pulping stage of pulping process water, namely use pulper from such as waste paper is
Size degradation fiber and the pulping stage of making beating in the pulping raw material of primary raw material, although with specific reference to type of device
And different, but from pulper, pulping cabinet (pulper chest) to completing case (completion chest)
Pulping stage pulping process water in addO-on therapy (a) and component (b).
The pulp density of the most described pulping process water is 3-5%.
When described pulp density within the above range time, can more effectively obtain the excellent effect of the present invention
Really.
The component (a) used in the present invention is not particularly limited, as long as it does not suppress this
Bright effect, it may for example comprise such as the hypochlorite of sodium hypochlorite, postassium hypochlorite and calcium hypochlorite
Aqueous solution.Present invention preferably uses these aqueous solutions, they particularly preferably use the water-soluble of sodium hypochlorite
Liquid.
The component (b) used in the present invention is not particularly limited, as long as it does not suppress this
Bright effect, it may for example comprise such as ammonium chloride, ammonium bromide, ammonium phosphate, ammonium dihydrogen phosphate, phosphoric acid
The aqueous solution of the water-soluble inorganic ammonium salt of hydrogen diammonium, ammonium sulfate and ammonium nitrate and ammonia.The present invention is preferred
Use these aqueous solutions and ammonia, they particularly preferably use aqueous solution and the water of ammonium sulfate of ammonium chloride
Solution.
As long as component (a) and component (b) to being used in the present invention are not particularly limited it
Do not suppress the effect of the present invention, can directly use the aqueous solution being purchased, or can also incite somebody to action with water
The aqueous solution being purchased uses after being diluted and is maybe used in water by the compound dissolution being purchased.
Such as, the aqueous solution of the sodium hypochlorite used in the present invention is not particularly limited, as long as
It does not suppress the effect of the present invention, and the sodium hypochlorite that concentration be 9-14 weight % that be purchased is preferably used
Aqueous solution.
The aqueous solution of the ammonium sulfate of the component (b) used in the present invention is not particularly limited,
As long as it does not suppress the effect of the present invention, use after the ammonium sulfate being purchased can be dissolved in water.Such as,
The concentration of the aqueous solution of described ammonium sulfate can be 10-40 weight %, preferably 10-35 weight %.
Further, the aqueous solution of the ammonium chloride of the component (b) used in the present invention is not had
Limit especially, as long as it does not suppress the effect of the present invention, the aqueous ammonium chloride solution being purchased can be used
Use after water dilution.Concentration after dilution for example, 10-30 weight %.
In the preparation method of the cardboard of the present invention, described component (a) and described component (b) are added
In pulping process water, wherein, in described component (a), effective chlorine density is 1000-9000mg/L, institute
The concentration stating component (b) is 1000-9000mg/L, and in described component (a) effective chlorine with described group
Dividing the mol ratio of nitrogen in (b) is 1:1～1:2.Although described component (a) and described component (b)
Addition according to chlorine required in described pulping process water is changed by addition, but prepares from storing
In step, the angle of the reducing effect of the addition of paper power reinforcing agent is set out, it is preferable that with described slurrying work
On the basis of sequence water, it is converted into the described component (a) of effective chlorine density and the addition of described component (b)
For 1-40mg/L.
It is highly preferred that the concentration of described component (a) is 1000-3000mg/L, and described component (b)
Concentration be nitrogen in effective chlorine and described component (b) in 1000-3000mg/L, and described component (a)
Mol ratio be 1:1.1-1:1.6.
Preferably, on the basis of described pulping process water, it is converted into the described component (a) of effective chlorine density
It is 1-20mg/L with the addition of described component (b).
Concrete, the effective chlorine density of described component (a) is 1000,1100,1200,1300,1400,
1500、1600、1700、1800、1900、2000、2100、2200、2300、2400、2500、
2600、2700、2800、2900、3000、3500、4000、4500、5000、5500、6000、
6500,7000,7500,8000,8500, the concentration of 9000mg/L etc..
Concrete, the concentration of described component (b) is 1000,1100,1200,1300,1400,1500,
1600、1700、1800、1900、2000、2100、2200、2300、2400、2500、2600、
2700、2800、2900、3000、3500、4000、4500、5000、5500、6000、6500、
7000,7500,8000,8500, the concentration of 9000mg/L etc..
Concrete, in described component (a), effective chlorine is 1 with the mol ratio of nitrogen in described component (b):
1.1,1:1.2,1:1.3,1:1.4,1:1.5,1:1.6 equimolar ratio.
In the preparation method of the cardboard of the present invention, described component (a) and component (b) simultaneously or are divided
It is not added in described pulping process water.Now, it is preferred embodiment in advance by component (a)
Carry out mixing in dilution water with prepared mixed solution with component (b), then by the mixed solution of gained
Add in described pulping process water.
Although to the order of addition of described component (a) He component (b), there is no particular limitation, but in order to
Effectively obtain the excellent results of the present invention, preferably according to first component (a), the interpolation of rear component (b)
They are added to pulping process water by order.In the case of preparing mixed solution in advance, it is also preferred that press
They are added to dilution water by the order of addition according to first component (a), rear component (b).
The example carrying out above-mentioned detailed description of the invention continuously includes a kind of following embodiment, that is,
The dilution waterline flowed in described pulping process water is provided, component (a) is added to described dilution waterline
In dilution water in component (a) add point and component (b) is added in described dilution waterline
Component (b) in dilution water adds point, and respectively, described component (a) adds described component (a)
Adding some points and be added, described component (b) is added point described component (b) and is added.Thus, institute
The mixed solution stating component (a) and component (b) is finally modulated in dilution waterline, and by gained
Mixed solution be flowed in described pulping process water.
In the preparation method of the cardboard of the present invention, described component (a) and component (b) by continuously or
It is intermittently added in described pulping process water.
In order to reduce the cost of medicament used, will not suppress in the range of the effect of the present invention, can drop
The concentration of low described component (a) and component (b), or to make interpolation frequency be batch (-type).Such as, as
The frequency to add per hour once, once added 5 minutes off and on shown in embodiment is added.
In the above-described embodiment, in order to more effectively and exactly process, preferably at described dilution water
Line provides the chlorimeter for measuring effective chlorine density in dilution water and for measure component (a) and
The pH meter of the pH value of the mixed solution of component (b), and according to measurement result adjust component (a) and
The addition of component (b).
In the preparation method of the cardboard of the present invention, molten in the mixing using component (a) and component (b)
In the case of liquid, from the angle of the reducing effect of the addition of the paper power reinforcing agent storing preparation process
Setting out, the pH value of the most described mixed solution is not less than 8.If the pH value of this mixed solution is less than 8,
Preferably by adding alkaline reagent such as sodium hydroxide and potassium hydroxide by the pH value regulation of mixed solution extremely
After 8 or higher, it is then added in described pulping process water.
By the additive containing paper power reinforcing agent is added to the slurrying of gained in above-mentioned pulping stage
The paper pulp raw material (storing preparation process) made with acquisition in operation water, and from the paper pulp raw material made
Carry out papermaking to obtain cardboard (papermaking procedure).
Described storing preparation process and papermaking procedure can use known apparatus and method and set suitable
Suitable condition.In described storing preparation process, in order to obtain the cardboard with required performance or physical property,
Additive in addition to paper power reinforcing agent can be added in pulping process water in appropriate amount.
Paper power reinforcing agent when preparing cardboard from containing the pulping raw material with waste paper as primary raw material
Addition, although according to the performance needed for the component of pulping raw material and their content and prepared cardboard
And different, but, compared to conventional addition, the addition of the paper power reinforcing agent of the present invention can drop
Low 15-90%.
Embodiment
Although the present invention will be specifically described by following example, but the present invention is not implemented by these
The restriction of example.
Embodiment 1
Use and produce certain cardboard of 700 tons every day and prepare the device A of factory, and to use waste paper be primary raw material
Prepare boxboard.Generally in this device A, with 0.75kg/ ton (with paper pulp in storing preparation process
Absolute dry weight on the basis of) amount continuously in pulping process water add polyacrylamide paper power strengthen
Agent (comparative example 1).
Pulping process water (broke pulper, pulp density in the storing preparation process of said apparatus A
Be 3.5%) in add per hour once, once add in the way of 5 minutes and add mixed solution, make
Must be converted into the concentration after effective chlorine is 10mg/L, and makes device A operation prepare boxboard in 90 days.Its
In, above-mentioned mixed solution is prepared in accordance with the following methods: use water for industrial use by 12 weight % time
Aqueous solution 60 times (effective chlorine density: 2400mg/L) of dilution of sodium chlorate (NaOCl), then with 35
The ammonium sulfate ((NH of weight %4)2SO4) aqueous solution mix so that in mixed solution effective chlorine with
The mol ratio of nitrogen is 1:1.2.
But, in that case, the polyacrylamide paper power added in storing preparation process strengthens
The amount of agent is reduced to 0.33kg/ ton (based on paper pulp from 0.75kg/ ton (absolute dry weight based on paper pulp)
Absolute dry weight) (reducing 56% compared with conventional operation).
By providing the dilution waterline flowing into pulping process water, the sodium hypochlorite of component (a) being added to
Component (a) in dilution water (water for industrial use) in described dilution waterline adds point and by component (b)
Ammonium sulfate add component (b) in the dilution water in described dilution waterline to and add point, and to become
For the mode of above-mentioned condition, respectively component (a) add point and component (b) add point with component (a),
The order of component (b) is added, and prepares above-mentioned mixed solution.
Therefore, although the amount of paper power reinforcing agent reduces, but still can prepare and use routine operation bar
The boxboard identical in quality of boxboard prepared by part (comparative example 1).According to common quality control mark
Accurate such as rupture strength (bursting strength) and ring pressure (ring crush), the matter of prepared boxboard
Amount is proved identical with conventional boxboard.
COD detection (before active sludge treatment) from the waste water of device A shows its COD value
It is reduced to 300mg/L from the 550mg/L of routine operation.It is believed that this is due to by adding the present invention
Mixed solution, it is suppressed that the starch on fiber in waste paper and the release of paper power reinforcing agent.
Embodiment 2
Use and produce certain cardboard of 470 tons every day and prepare the device B of factory, and to use waste paper be primary raw material
Prepare boxboard and fluting medium (corrugating medium).Generally in this device B, at storing
By the amount of 3.9kg/ ton (on the basis of the absolute dry weight of paper pulp) continuously to pulping process in preparation process
Water adds polyacrylamide paper power reinforcing agent (comparative example 2).
(completing case, pulp density is pulping process water in the storing preparation process of said apparatus B
4%), to add per hour once, once add in the way of 5 minutes and add mixed solution so that conversion
Becoming the concentration after effective chlorine is 20mg/L, and 60 days prepared by device B operation boxboard.Wherein, on
State mixed solution to be prepared in accordance with the following methods: use water for industrial use by the sodium hypochlorite of 12 weight %
(NaOCl) aqueous solution 60 times (effective chlorine density: 2400mg/L) of dilution, then with 35 weight
The ammonium sulfate ((NH of %4)2SO4) aqueous solution mix, so that effective chlorine and nitrogen in mixed solution
Mol ratio is 1:1.2.
But, in that case, the polyacrylamide paper power of the addition in storing preparation process increases
The amount of strong agent is reduced to 2.9kg/ ton (based on paper pulp from 3.9kg/ ton (absolute dry weight based on paper pulp)
Absolute dry weight) (reducing 25% compared with conventional operation).
By providing the dilution waterline flowing into pulping process water, the sodium hypochlorite of described component (a) being added
The component (a) being added in the dilution water (water for industrial use) in described dilution waterline adds point and by group
The ammonium sulfate dividing (b) adds the component (b) in the dilution water in described dilution waterline to and adds point, and
And in the way of becoming above-mentioned condition, respectively component (a) add point and component (b) add point with
Component (a), the order of component (b) are added, and prepare above-mentioned mixed solution.
Therefore, although the amount of paper power reinforcing agent reduces, but still can prepare and use routine operation bar
The boxboard identical in quality of boxboard prepared by part (comparative example 2).According to common quality control mark
Standard such as rupture strength and ring pressure, the quality of prepared boxboard is proved and the phase of conventional boxboard
With.
COD detection (before active sludge treatment) from the waste water of device A shows its COD value
It is reduced to 350mg/L from the 600mg/L of routine operation.It is believed that this is due to by adding the present invention
Mixed solution, it is suppressed that the starch on fiber in waste paper and the release of paper power reinforcing agent.
Embodiment 3
Procedure below uses certain cardboard in embodiment 1 and prepares what the device A of factory was carried out.Generally, exist
In this device A in storing preparation process, by 0.75kg/ ton (on the basis of the absolute dry weight of paper pulp)
Amount continuously in pulping process water add polyacrylamide paper power reinforcing agent (comparative example 3).
Pulping process water (broke pulper, pulp density in the storing preparation process of said apparatus A
Be 3.5%) in add per hour once, once add in the way of 5 minutes and add mixed solution, make
Must be converted into the concentration after effective chlorine is 10mg/L, and makes device A operation prepare boxboard in 90 days.Its
In, above-mentioned mixed solution is prepared in accordance with the following methods: use water for industrial use by 12 weight % time
Aqueous solution 60 times (effective chlorine density: 2400mg/L) of dilution of sodium chlorate (NaOCl), then with 20
Ammonium chloride (the NH of weight %4Cl) water-soluble mixes, so that effective chlorine and nitrogen in mixed solution
Mol ratio is 1:1.2.
But, in that case, the polyacrylamide paper power added in storing preparation process strengthens
The amount of agent is reduced to 0.33kg/ ton (based on paper pulp from 0.75kg/ ton (absolute dry weight based on paper pulp)
Absolute dry weight) (reducing 56% compared with conventional operation).
By providing the dilution waterline flowing into pulping process water, the sodium hypochlorite of described component (a) being added
The component (a) being added in the dilution water (water for industrial use) in described dilution waterline adds point and by group
The ammonium chloride dividing (b) adds the component (b) in the dilution water in described dilution waterline to and adds point, and
And in the way of becoming above-mentioned condition, respectively component (a) add point and component (b) add point with
Component (a), the order of component (b) are added, and prepare above-mentioned mixed solution.
Therefore, although the amount of paper power reinforcing agent reduces, but still can prepare and use routine operation bar
The boxboard identical in quality of boxboard prepared by part (comparative example 3).According to common quality control mark
Standard such as rupture strength and ring pressure, the quality of prepared boxboard is proved and the phase of conventional boxboard
With.
COD detection (before active sludge treatment) from the waste water of device A shows its COD value
It is reduced to 300mg/L from the 550mg/L of routine operation.It is believed that this is due to by adding the present invention
Mixed solution, it is suppressed that the starch on fiber in waste paper and the release of paper power reinforcing agent.
The preparation method of the cardboard according to the present invention, as the cardboards such as casingd board can be by use waste paper
Primary raw material is also prepared the most economically by reducing the amount of paper power reinforcing agent.
Claims (5)
1. a preparation method for cardboard, the method includes:
From containing size degradation fiber pulping raw material with waste paper as primary raw material and making beating to obtain slurrying work
The pulping stage of sequence water；
Additive containing paper power reinforcing agent is added in the pulping process water of gained the paper made with acquisition
The storing preparation process of slurry raw material；And
The obtained paper pulp raw material made is prepared as the papermaking procedure of cardboard,
Wherein, by the aqueous solution by the aqueous solution of (a) hypochlorite He (b) water-soluble inorganic ammonium salt
Or ammonia adds in described pulping process water, the paper being added in described storing preparation process with reduction
The amount of power reinforcing agent, thus prepare cardboard；
Wherein, in described pulping process water, pulp density is 3-5%；In described component (a) effective chlorine with
In described component (b), the mol ratio of nitrogen is 1:1～1:2；
Wherein, in described component (a), effective chlorine density is 1000-9000mg/L；Described component (b)
Concentration be 1000-9000mg/L；On the basis of described pulping process water, it is converted into effective chlorine density
Described component (a) is 1-40mg/L with the addition of described component (b).
The preparation method of cardboard the most according to claim 1, wherein, described component (a) is secondary
The aqueous solution of the hypochlorite of sodium chlorate, postassium hypochlorite or calcium hypochlorite, and described component (b) is
The water of ammonium chloride, ammonium bromide, ammonium phosphate, ammonium dihydrogen phosphate, diammonium phosphate, ammonium sulfate or ammonium nitrate
The aqueous solution of insoluble inorganic ammonium salt or ammonia.
The preparation method of cardboard the most according to claim 1, wherein, has in described component (a)
Effect cl concn is 1000-3000mg/L；The concentration of described component (b) is 1000-3000mg/L；With institute
On the basis of stating pulping process water, it is converted into the described component (a) of effective chlorine density and described component (b)
Addition be 1-20mg/L.
The preparation method of cardboard the most according to claim 1, wherein, by described component (a) with
Described component (b) carries out mixing with prepared mixed solution, then adds the mixed solution of gained to institute
State in pulping process water.
The preparation method of cardboard the most according to claim 1, wherein, it is provided that flow into pulping process
Dilution waterline in water to, described component (a) is added the group in the dilution water in described dilution waterline
(a) is divided to add point and component (b) is added to the component (b) in the dilution water in described dilution waterline
Adding point, respectively, described component (a) is added point described component (a) and is added, Yi Jisuo
State component (b) to be added at described component (b) interpolation point.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-142053 | 2012-06-25 | ||
| JP2012142053 | 2012-06-25 | ||
| PCT/JP2013/067240 WO2014002945A1 (en) | 2012-06-25 | 2013-06-24 | Process for manufacturing paperboard |
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| Publication Number | Publication Date |
|---|---|
| CN104471148A CN104471148A (en) | 2015-03-25 |
| CN104471148B true CN104471148B (en) | 2016-08-17 |
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| CN201380031107.6A Expired - Fee Related CN104471148B (en) | 2012-06-25 | 2013-06-24 | The preparation method of cardboard |
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| Country | Link |
|---|---|
| US (1) | US9546452B2 (en) |
| EP (1) | EP2865807A4 (en) |
| JP (1) | JP5621082B2 (en) |
| KR (1) | KR101689360B1 (en) |
| CN (1) | CN104471148B (en) |
| BR (1) | BR112014032298A2 (en) |
| WO (1) | WO2014002945A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9546452B2 (en) * | 2012-06-25 | 2017-01-17 | Katayama Chemical, Inc. | Process for manufacturing paperboard |
| JP2014100650A (en) * | 2012-11-20 | 2014-06-05 | Sumika Enviro-Science Co Ltd | Growth suppression method of microbe |
| CN107385992A (en) * | 2017-06-28 | 2017-11-24 | 吕超 | A kind of preparation method of the water-fast environment-friendly paperboard of packed in cases |
| JP6806336B2 (en) * | 2017-07-28 | 2021-01-06 | 株式会社片山化学工業研究所 | Method for promoting disintegration of used paper pulp |
| CN109853296A (en) * | 2019-01-08 | 2019-06-07 | 广东理文造纸有限公司 | A kind of preparation method of antibacterial cleaning paper |
| JP6664627B1 (en) * | 2019-10-07 | 2020-03-13 | 株式会社片山化学工業研究所 | Method of improving the effect of paper strength enhancer in papermaking process |
| JP7219517B1 (en) | 2022-03-31 | 2023-02-08 | 株式会社片山化学工業研究所 | Method for improving effect of paper strength agent |
| JP7219518B1 (en) | 2022-03-31 | 2023-02-08 | 株式会社片山化学工業研究所 | Method for improving effect of paper strength agent |
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| CN101255663A (en) * | 2008-01-29 | 2008-09-03 | 陕西科技大学 | Method for manufacturing high ring-pressure strength corrugated base paper |
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| DE3724646A1 (en) * | 1987-07-25 | 1989-02-02 | Basf Ag | METHOD FOR PRODUCING PAPER, CARDBOARD AND CARDBOARD WITH HIGH DRY RESISTANCE |
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| JP2002068910A (en) * | 2000-06-13 | 2002-03-08 | Katayama Chem Works Co Ltd | Antimicrobial agent for industrial purpose and method for controlling microorganism for industrial purpose |
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| US7008545B2 (en) * | 2002-08-22 | 2006-03-07 | Hercules Incorporated | Synergistic biocidal mixtures |
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- 2013-06-24 US US14/407,677 patent/US9546452B2/en not_active Expired - Fee Related
- 2013-06-24 CN CN201380031107.6A patent/CN104471148B/en not_active Expired - Fee Related
- 2013-06-24 JP JP2013548124A patent/JP5621082B2/en active Active
- 2013-06-24 BR BR112014032298A patent/BR112014032298A2/en not_active IP Right Cessation
- 2013-06-24 KR KR1020147035833A patent/KR101689360B1/en active IP Right Grant
- 2013-06-24 WO PCT/JP2013/067240 patent/WO2014002945A1/en active Application Filing
- 2013-06-24 EP EP13808546.9A patent/EP2865807A4/en not_active Withdrawn
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| CN101255663A (en) * | 2008-01-29 | 2008-09-03 | 陕西科技大学 | Method for manufacturing high ring-pressure strength corrugated base paper |
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| Publication number | Publication date |
|---|---|
| KR20150024341A (en) | 2015-03-06 |
| KR101689360B1 (en) | 2016-12-26 |
| EP2865807A1 (en) | 2015-04-29 |
| JP5621082B2 (en) | 2014-11-05 |
| US9546452B2 (en) | 2017-01-17 |
| BR112014032298A2 (en) | 2017-06-27 |
| JPWO2014002945A1 (en) | 2016-05-30 |
| WO2014002945A1 (en) | 2014-01-03 |
| EP2865807A4 (en) | 2016-02-17 |
| US20150167248A1 (en) | 2015-06-18 |
| CN104471148A (en) | 2015-03-25 |
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